Lake Chad flooded savanna
Ọdọ Mmiri Chad nke idei mmiri juputara na savanna bụ ala mmiri juru na savannas n'Africa. Ọ na-agụnye ala njikọ nke ide mmiri na-e Mega n'oge na nke na-adịgide adịgide na mpaghara ɔdɔ mmiri Chad na Central Africa, na-ekpuchikwa ndị nke Cameroon, Chad, Niger, na Nigeria .
Geography
[dezie | dezie ebe o si]Ɔdɔ mmirika Chad bụ nnukwu ịhụnanya mmiri na-emighị emi, nke dị n'etiti nnukwu mmiri mmiri mmiri mechiri emechi, na-eche ụzọ n'oké osimiri. Ọdọ mmiri Chad nwere mpaghara 2,381,635 square kilometa (919,554 sq mi) . otu ugwu nke efere ahụ bụ nkekpa nkụ ma ọ bụ nkekpa nkụ, na ọrịa ndị nwere ihu igwe na-ekpo ọkụ n'oge..
Savanna nke idei mmiri gbara gburugburu ɔdɔ mmiri ahụ. Sika Chari na Logone, nke na-aputa n'ebe ugwu site n'ugwu dị n'ama ọnụ mmiri dị na ndịda, na-enye 95% nke mmiri dị n'Ọdọ Mmiri Chad. jiha Yobe, nke na-ahọga n'ebe Iri banye na nstụtụ ugwu ɔdɔ mmiri ahụ, na-atụnye 2.5% nke mmiri na-abanye n'ọdọ mmiri ahụ.
N'agbanyeghị enweghị ụzọ ọpụpụ, Ọdọ Mmiri Chad nwere nnu dị ntakịrị. Mmiri dị nnu karịa na-emikpu n'ala ala ọdọ mmiri ahụ, ma na-esi n'ọdụ ụgbọ mmiri na-asọga n'ebe ugwu. Akụkụ ndịda nke ọdọ mmiri ahụ, bụ́ nke na-enweta ọ̀tụ̀tụ̀ mmiri ka ukwuu, na-adịkarịchaghị nnu karịa akụkụ ugwu.
Ecoregion gụ akara ala mmiri Hadejia-Nguru dị na ugwu Naijiria. Ala mmiri mmiri ndị a na-adị n'oge na-etolite n'otu nkwekọ nke Hadejia osimiri Jama'are, akụkụ nke ụzọ osimiri Yobe nke dị n'iddi-ama egwuregwu nke ɔdɔ mmiri ahụ. Ala mmiri mmiri ndị a ruo 6,000 km 2 n'oge osimiri 'n'ikpeazụ-August ọnụ ọgụgụ kasị elu, nke nwere oke mmiri dị 2,000 km2.
ụzọ ɔdɔ mmiri Chad nke ecoregion gbara Sahelian Acacia savanna ecoregion, eriri savanna akọrọ nke na-aga n'ihe ngosi ndị na-eme egwuregwu ese Africa na ndịda Ọzara Sahara . Ala mmiri Hadejia-Nguru dị na mpaghara savanna ahụ egwuregwu Sudan .
Ihu igwe
[dezie | dezie ebe o si]Ihu igwe dị ebe okpomọkụ na akọrọ, yana 320 mm nke mmiri ozuzo kwa afọ na ọdọ ahụ. A na-etinye oke mmiri ozuzo n'oge mmiri ozuzo June ruo Ọktoba. Machị ruo June na-ekpo ọkụ ma kpọọ nkụ, na ọnwa Nọvemba ruo February na ọnwa oyi na-ekpo ọkụ ma na-ekpo ọkụ. Evaporation karịrị oke mmiri ozuzo n'ime ọtụtụ ọnwa.
Osisi
[dezie | dezie ebe o si]Ọdọ mmiri ahụ na-agụnye ebe mmiri mepere emepe na akwa na-amị mkpụrụ na-emighị emi. Osisi ogbunigwe ndị a na-ama na ɔdɔ mmiri mmiri ndị na-egwu Cyperus papyrus, Phragmites mauritianus, na Vossia cuspidata . Phragmites australis na Typha domingensis na-eme na ɔdɔ mmirika nnu nnu. letus Nile ( Pistia stratiotes ) bụ osisi na-ese n'elu mmiri nke na-etolite nnukwu akwa mgbe ụfọdụ n'ofe ebe mmiri na-agụ.
Ahịhịa dị n'ụdị ebe idei mmiri na-eru n'oge na-adịgasị iche n'ịdị omimi na ogologo oge idei mmiri n'oge. A na-ahụ ala ala Yaéré n'ebe idei mmiri na-e ọgụ na nsõtụ nke ɔdɔ mmiri ahụ. Osisi ndị nwere ike ikwu Echinochloa pyramidalis, Vetiveria nigritana, Oryza longistaminata, na Hyparrhenia rufa . Ebe idei mmiri nke oge a na-adị obere ma dị, osisi na osisi dị, sitere na savannas ruo n'iji, nke a mara 'karal' ma ọ bụ 'firki' nke obodo. Acacia seyal bụ osisi kacha ewu ewu, nke nwere Acacia nilotica gburugburu nkụda ịgụ. Ahịhịa na osisi na-eto na mita 2 ruo 3 n'ịdị elu, Caperonia palustris, Echinochloa colona, Hibiscus asper, Hygrphila auriculata, Sorghum purpureosericeum, na Schoenfeldia gracilis
Anụ anụmanụ
[dezie | dezie ebe o si]Ala, idei mmiri juru na savannas bụ ebe obibi dị mkpa maka ọkụ mmiri, ndị njem Palearctic na-agafe oge oyi ebe a. Osisi prinia ( Prinia fluviatilis ) na nchara lark ( Mirafra rufa ) bụ ike ndị bi n'Ọdọ Chad nke ndị na savannas na ala mmirika ndị ọzọ na Sahel..
Egwu
[dezie | dezie ebe o si]Ọdọ mmiri ahụ adalatala nke ukwuu n'ime iri afọ ndị na-adịbeghị anya, na-aghọwanye nke na-emighị emi ma na-adị ntakịrị.
Ebe echedoro
[dezie | dezie ebe o si]Nnyocha e mere na 2017 chọpụtara na 14,732 km 2, ma ọ bụ 46%, nke ecoregion dị na mpaghara echedoro.
Ntụaka
[dezie | dezie ebe o si]Njikọ mpụga
[dezie | dezie ebe o si]- Media related to Lake Chad flooded savanna at Wikimedia Commons